Foldable climbing ladder for forestry

Abstract

The utility model provides a foldable climbing ladder for forestry, which relates to the field of forestry climbing ladders and comprises a forestry climbing ladder body, the top end of the forestry climbing ladder body is connected with a first section of ladder stand through a central shaft column, the lower end of the first section of ladder stand is connected with a second section of ladder stand through a hinge shaft, and the second section of ladder stand is connected with a second section of ladder stand through a hinge shaft. The lower end of the second section of crawling ladder is connected with a third section of crawling ladder through a hinge shaft, two groups of universal joints are welded on the side surface of the hinge end of the second section of crawling ladder, the universal joints are respectively connected with a short supporting rod and a long supporting rod through threaded columns, and the middle parts of the short supporting rod and the long supporting rod are respectively in threaded connection with a connecting sleeve. The folding ladder solves the problem that in the prior art, a plurality of sections of ladder bodies are difficult to fold and store, so that daily carrying is inconvenient.

Description

Technical Field

[0001] The utility model relates to the technical field of forestry climbing ladders, in particular to a foldable forestry climbing ladder. Background Art

[0002] A forestry climbing ladder is a tool specially designed for forestry workers, mainly used for tasks such as tree pruning, shaping and pest control. After searching, the existing technology (Announcement No.: CN202022573831.1) is a garden climbing ladder with a folding function. The article records that "by providing a first ladder body, an electric lifting sleeve and a second ladder body, the climbing ladder can have a lifting effect, and the height of the climbing ladder can be adjusted according to needs, which is convenient for working at different heights and convenient for subsequent use." However, the multi-section ladder bodies in the existing technology are difficult to fold and store, resulting in inconvenience in daily transportation. Utility Model Content

[0003] In order to overcome the defects of the prior art, a foldable forestry climbing ladder is provided to solve the problem in the prior art that the multiple ladder sections are difficult to fold and store, resulting in inconvenience in daily carrying.

[0004] In order to achieve the above object, a foldable forestry climbing ladder is provided, comprising: a forestry climbing ladder body, the top of which is connected to a first ladder section via a central axis column.

[0005] The lower end of the first ladder section is connected to the second ladder section through a hinge shaft, and the lower end of the second ladder section is connected to the third ladder section through a hinge shaft. Two sets of universal joints are welded on the side of the hinge end of the second ladder section, and the universal joints are respectively connected to the short strut and the long strut through threaded columns. The middle part of the short strut and the long strut are both screwed with a connecting sleeve.

[0006] Furthermore, a central axis column is sleeved on the upper end of the first ladder section, and transverse plates are welded to the inner sides of the first ladder section, the second ladder section and the third ladder section.

[0007] Furthermore, a ring block is welded to the side end of the second ladder section, and a buckle is fixed to the side end of the third ladder section; and the buckle is correspondingly buckled with the ring block.

[0008] Furthermore, the lower end of the third ladder section is movably connected to a counterweight base; and a fixing hole is opened on the surface of the counterweight base, and the extended side end of the counterweight base is connected to a roller through an adjusting stud.

[0009] Furthermore, an internal threaded hole is provided in the end of the universal joint; and the threaded column is screwed into the internal threaded hole.

[0010] Furthermore, one end of the short support rod and the long support rod is welded with a threaded column through a connecting block; and the other side is sleeved in the connecting sleeve through a surface thread.

[0011] Furthermore, the short struts and the long struts are correspondingly supported at the hinged side ends of the first ladder section, the second ladder section and the third ladder section.

[0012] The beneficial effect of the present invention is that the foldable forestry climbing ladder of the present invention utilizes the first section, the second section, the third section, the short support rod and the long support rod to hingely support and form a foldable climbing ladder. By disassembling the short support rod and the long support rod connected at one end, the movably hinged second section and the third section of the ladder are folded and laid flat, so that the climbing ladder is folded downward and stowed, effectively reducing the overall height and center of gravity of the climbing ladder, ensuring that the forestry climbing ladder is more stable during transportation and movement. At the same time, the rollers at the bottom of the climbing ladder facilitate pushing the folded climbing ladder to move, thereby enhancing the portability of the foldable forestry climbing ladder and improving the practical performance of the forestry climbing ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view structural diagram of a foldable forestry climbing ladder according to an embodiment of the utility model.

[0014] Figure 2 This is a schematic side view of the partial structure of a foldable forestry climbing ladder according to an embodiment of the present utility model.

[0015] Figure 3 This is a side view schematic diagram of the partial connection structure of the second section of the ladder in an embodiment of the present utility model.

[0016] Figure 4 This is a schematic cross-sectional view of a short support rod according to an embodiment of the present invention.

[0017] In the figure: 1. Forestry climbing ladder body; 11. Central axis column; 2. First ladder section; 3. Second ladder section; 31. Ring block; 32. Universal joint; 33. Cross plate; 34. Articulated shaft; 35. Internal threaded hole; 4. Third ladder section; 41. Retaining ring; 42. Counterweight base; 43. Roller; 44. Adjusting stud; 5. Short support rod; 51. Long support rod; 52. Connecting sleeve; 53. Connecting block; 54. Threaded column. DETAILED DESCRIPTION

[0018] Reference Figures 1 to 4 As shown, the utility model provides a foldable forestry climbing ladder, comprising: a forestry climbing ladder body 1, the top of which is connected to a first ladder section 2 via a central shaft column 11.

[0019] The lower end of the first ladder section 2 is connected to the second ladder section 3 through a hinge shaft 34, and the lower end of the second ladder section 3 is connected to the third ladder section 4 through a hinge shaft 34. Two sets of universal joints 32 are welded to the side of the hinged end of the second ladder section 3. The universal joints 32 are respectively connected to the short strut 5 and the long strut 51 through threaded columns 54. The middle part of the short strut 5 and the long strut 51 are both screwed with a connecting sleeve 52.

[0020] When folding the forestry climbing ladder body 1, first unscrew the end of the short support rod 5 and the long support rod 51 connected to the universal joint 32, move the roller 43 downward to the ground, fold down and lay the second and third ladder sections 3 and 4 flat, so that the second ladder section 3 is stacked on the upper surface of the third ladder section 4, and after buckling, the top first ladder section 2 descends and is located on the surface of the flat second ladder section 3, and the folded forestry climbing ladder body 1 can be pushed to move.

[0021] In this embodiment, the upper end of the first ladder section 2 is sleeved with a central shaft 11. A horizontal plate 33 is welded to the inner side surfaces of the first, second, and third ladder sections 2, 3, and 4. A ring block 31 is welded to the side end of the second ladder section 3, and a retaining ring 41 is fixed to the side of the third ladder section 4; the retaining ring 41 is correspondingly engaged with the ring block 31.

[0022] As a preferred embodiment, the second and third ladder sections 3 and 4 can be folded up and down and laid flat, and are fastened to the folded second ladder section 3 via a buckle 41 to prevent the folded ladders from becoming loose during movement.

[0023] In this embodiment, the lower end of the third ladder section 4 is movably connected to a counterweight base 42 ; a fixing hole is opened on the surface of the counterweight base 42 , and the extended side end of the counterweight base 42 is connected to a roller 43 through an adjusting stud 44 .

[0024] As a preferred embodiment, the counterweight base 42 facilitates the stabilization of the third ladder section 4. The counterweight base 42 can be nailed to the ground with ground spikes to ensure the stable support of the forestry climbing ladder body 1. The adjustment stud 44 can drive the roller 43 to move up and down. When moving the forestry climbing ladder body 1, the roller 43 can be lowered to raise the counterweight base 42, and the roller 43 can be in contact with the ground, making it convenient for daily portable movement of the counterweight base 42.

[0025] In this embodiment, an internal threaded hole 35 is defined in the end of the universal joint 32 , and the threaded column 54 is screwed into the internal threaded hole 35 .

[0026] As a preferred embodiment, the universal joint 32 is connected to the short support rod 5 and the long support rod 51 of the horizontal support through the threaded hole 35, thereby supporting and fixing the unfolded forestry climbing ladder body 1 to prevent the hinged multi-section ladder from folding and moving.

[0027] In this embodiment, the short and long struts 5 and 51 have threaded studs 54 welded to one end through a connecting block 53, and the other ends are threadedly threaded into connecting sleeves 52. The short and long struts 5 and 51 are supported at the hinged ends of the first, second, and third ladder sections 2, 3, and 4, respectively.

[0028] As a preferred embodiment, one end of the short strut 5 and the long strut 51 are connected to the universal joint 32 at the side end of the second ladder section 3 through a threaded column 54, and the connecting sleeve 52 is used to adjust the overall length of the short strut 5 and the long strut 51, and adjust it according to the deployment angle of the climbing ladder to ensure that the short strut 5 and the long strut 51 can be stably supported between the second ladder sections 3 on both sides.

[0029] The foldable forestry climbing ladder of the utility model can effectively solve the problem in the prior art that it is difficult to fold and store the multiple ladder sections, which makes daily carrying inconvenience, and effectively reduces the overall height and center of gravity of the climbing ladder, ensuring that the forestry climbing ladder is more stable during transportation and movement. At the same time, the rollers at the bottom of the climbing ladder facilitate pushing the folded climbing ladder to move, thereby enhancing the portability of the foldable forestry climbing ladder and improving the practical performance of the forestry climbing ladder. The utility model is suitable for foldable forestry climbing ladders.

Claims

1. A foldable forestry climbing ladder, comprising: A forestry climbing ladder body (1), wherein the top of the forestry climbing ladder body (1) is connected to a first ladder section (2) via a central shaft column (11), and is characterized in that: The lower end of the first ladder section (2) is connected to the second ladder section (3) via a hinge shaft (34), and the lower end of the second ladder section (3) is connected to the third ladder section (4) via a hinge shaft (34). Two sets of universal joints (32) are welded to the side of the hinge end of the second ladder section (3), and the universal joints (32) are respectively connected to the short support rod (5) and the long support rod (51) via threaded columns (54). The middle parts of the short support rod (5) and the long support rod (51) are both screwed with a connecting sleeve (52).

2. A foldable forestry climbing ladder according to claim 1, characterized in that: The upper end of the first ladder section (2) is sleeved with a central shaft column (11), and the inner side surfaces of the first ladder section (2), the second ladder section (3) and the third ladder section (4) are all welded with a transverse plate (33).

3. The foldable forestry climbing ladder according to claim 1, characterized in that: A ring block (31) is welded to the side end of the second ladder section (3), and a buckle (41) is fixed to the side of the third ladder section (4); and the buckle (41) is correspondingly buckled with the ring block (31).

4. The foldable forestry climbing ladder according to claim 1, characterized in that: The lower end of the third ladder (4) is movably connected to a counterweight base (42); a fixing hole is provided on the surface of the counterweight base (42); and an extended side end of the counterweight base (42) is connected to a roller (43) via an adjusting stud (44).

5. The foldable forestry climbing ladder according to claim 1, characterized in that: An internal threaded hole (35) is provided in the end of the universal joint (32); and the threaded column (54) is screwed into the internal threaded hole (35).

6. The foldable forestry climbing ladder according to claim 1, characterized in that: One end of the short support rod (5) and the long support rod (51) is welded with a threaded column (54) through a connecting block (53); and the other side is sleeved in a connecting sleeve (52) through a surface thread.

7. The foldable forestry climbing ladder according to claim 6, characterized in that: The short support rod (5) and the long support rod (51) are supported correspondingly at the hinged side ends of the first ladder (2), the second ladder (3) and the third ladder (4).

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